--- product_id: 291639835 title: "Astromania 2\" 2.5X Barlow Lens - Allows The use of Both 2\" and 1.25\" eyepieces" brand: "astromania" price: "766.85 DT" currency: TND in_stock: true reviews_count: 5 category: "Astromania" url: https://www.desertcart.tn/products/291639835-astromania-2-2-5x-barlow-lens-allows-the-use-both store_origin: TN region: Tunisia --- # 2.5x precision magnification Dual-size 2" & 1.25" eyepiece adapter 4-element fully multi-coated lens Astromania 2" 2.5X Barlow Lens - Allows The use of Both 2" and 1.25" eyepieces **Brand:** astromania **Price:** 766.85 DT **Availability:** ✅ In Stock ## Summary > 🔭 Elevate your cosmic view — don’t just observe, dominate the night sky! ## Quick Answers - **What is this?** Astromania 2" 2.5X Barlow Lens - Allows The use of Both 2" and 1.25" eyepieces by astromania - **How much does it cost?** 766.85 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/291639835-astromania-2-2-5x-barlow-lens-allows-the-use-both) ## Best For - astromania enthusiasts ## Why This Product - Trusted astromania brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Crystal-Clear Optics:** Professional-grade multi-coated apochromatic lens system minimizes chromatic aberration for stunning contrast. - • **Lightweight & Durable:** Anodized aluminum body ensures portability without sacrificing ruggedness for your stargazing adventures. - • **Effortless Integration:** Bottom-mounted 2" design with M48x0.75 threading fits perfectly with your telescope’s focusers and filters. - • **Versatile Compatibility:** Seamlessly switch between 2" and 1.25" eyepieces with the precision CNC-machined dual adapter system. - • **Sharper Views, Deeper Space:** Experience authentic 2.5x magnification with edge-to-edge clarity for planetary and lunar details. ## Overview The Astromania 2" 2.5X Barlow Lens boosts your telescope’s magnification by 2.5 times while maintaining sharp, high-contrast images thanks to its fully multi-coated 4-element apochromatic lens. Designed with a durable anodized aluminum body and a dual adapter system, it supports both 2" and 1.25" eyepieces, making it a versatile and essential upgrade for serious amateur astronomers seeking crisp planetary and lunar observations. ## Description 2" Barlow inserts between the eyepiece and a 2" eyepiece holder on the telescope and increases the magnification by 2.5x. It can be used with 1.25" eyepiece and 2" eyepieces. The 4-element fully multicoated lens assembly offers superb field flatness and minimal chromatic aberration. Review: great on longer focal length eyepieces - good at low magnifications. I have an f/5 8" newtonian. This gives good views when I have eyepieces of 16mm or higher. Serious design flaw: only one locking knob Having only one lock knob is a serious design flaw - makes it unusable with a DSLR weight. Review: A really nice 2" barlow for a good price - A really nice 2" barlow for a good price! Works very well no lens defects am pleased! ## Features - Precision 2.5x Magnification Boost: This 2.5x deluxe barlow lens delivers authentic 2.5x magnification without compromising edge-to-edge sharpness; perfect for capturing planet or lunar rille details at extended focal lengths - Professional-Grade Multi-Coating System: Feature fully multi-coated apochromatic lens system with 4 elements design; effectively minimize chromatic aberration and ensure clear and sharp imaging performance; perfect for high-contrast planetary observation - Engineered with Mutiple-Layer Material: Constructed from anodized aluminum provide using cycle and lightweight portability; Integrated with premium optical glass significantly enhance chromatic aberration correction and deliver exceptionally better image - Double Adapter System: Functions as 2 inch to 1.25 inch adapter enable compatibility with 1.25" & 2" eyepiece as well as other telescope accessory of same diameter; equipped with precision CNC-machined brass compression ring and dual knurled thumbscrews - 2 Inch Bottom-Mounted Design: This 2 inch telescope barlow lens includes 2" tube diatemer that connect to 2" telescope focusers or other 2" telescope accessories and M48x0.75 female thread to connect to 2" telescope filter with M48x0.75 male thread ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0140UAG7M | | Additional Features | 2.5x Magnification | | Brand | Astromania | | Coating | Fully Coated | | Compatible Devices | Telescope with 1.25" or 2" focusers | | Customer Reviews | 3.6 out of 5 stars 23 Reviews | | Exit Pupil Diameter | 20.4 Millimeters | | Eye Piece Lens Description | Barlow | | Eye piece lens description | Barlow | | Field Of View | 2.45 Degrees | | Finderscope | Reflex | | Focal Length Description | 20 inches | | Focus Type | Manual Focus | | Focus type | Manual Focus | | Item Weight | 5.6 Ounces | | Manufacturer | Astromania | | Manufacturer Part Number | SKU_AM_BL2X4 | | Model Name | Astromania Upgraded 2.5X 2 inch Barlow Lens | | Model Number | SKU_AM_BL2X4 | | Model name | Astromania Upgraded 2.5X 2 inch Barlow Lens | | Mount | Tripod Mount | | Objective Lens Diameter | 25.0 | | Objective lens diameter | 25.0 | | Power Source | Manual Operation | | Telescope mount description | Tripod Mount | | Zoom Ratio | 2.5 | ## Images ![Astromania 2" 2.5X Barlow Lens - Allows The use of Both 2" and 1.25" eyepieces - Image 1](https://m.media-amazon.com/images/I/7175mwLp5lL.jpg) ![Astromania 2" 2.5X Barlow Lens - Allows The use of Both 2" and 1.25" eyepieces - Image 2](https://m.media-amazon.com/images/I/713paofAiRL.jpg) ![Astromania 2" 2.5X Barlow Lens - Allows The use of Both 2" and 1.25" eyepieces - Image 3](https://m.media-amazon.com/images/I/71vEA+PXRyL.jpg) ![Astromania 2" 2.5X Barlow Lens - Allows The use of Both 2" and 1.25" eyepieces - Image 4](https://m.media-amazon.com/images/I/71zQfNgPZzL.jpg) ![Astromania 2" 2.5X Barlow Lens - Allows The use of Both 2" and 1.25" eyepieces - Image 5](https://m.media-amazon.com/images/I/717sEYGgUIL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐ great on longer focal length eyepieces *by R***K on 5 September 2019* good at low magnifications. I have an f/5 8" newtonian. This gives good views when I have eyepieces of 16mm or higher. Serious design flaw: only one locking knob Having only one lock knob is a serious design flaw - makes it unusable with a DSLR weight. ### ⭐⭐⭐⭐⭐ A really nice 2" barlow for a good price *by G***E on 10 September 2022* A really nice 2" barlow for a good price! Works very well no lens defects am pleased! ### ⭐ Distorted and blurred edges with decreased brightness *by K***Y on 17 November 2024* You can compare the two images with and without the 2.5x Barlow lens using the exact same setting on my camera and telescope. The image brightness without the barlow lens was nearly 3 times and you can clearly see that the edges are blurry and distorted. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/291639835-astromania-2-2-5x-barlow-lens-allows-the-use-both](https://www.desertcart.tn/products/291639835-astromania-2-2-5x-barlow-lens-allows-the-use-both) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-30*